Personally I come down on the other way, I love alternate options, and personally think the pseudo-legendary pokemon are ripe for having some kind of 'and if these special conditions are met something strange may happen' kinda ones.

"Japanese variety show, Pokémon Smash has just aired and has shown that there will be a new Pokémon revealed during the episode next week. It's not currently known what the contents of this will be, but the trailer showcases a clip from X & Y with a Pokémon blanked out, confirmed to be a new Pokémon. The trailer also showcased Junichi Masuda showcasing something. This was stated to be a world exclusive!"